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http://dx.doi.org/10.9712/KASS.2018.18.2.59

Analysis of Peak Wind Pressure Coefficients of Penetration Type and End Type Pilotis  

You, Jang-Youl (College of Architecture Engineering, Songwon Univ.)
Kim, Geun-Ho (College of Architecture Engineering, Chonbuk National Univ.)
Chae, Myung-Jin (School of Engineering & Technology, Department of Engineering, Central Connecticut State Univ.)
Kim, Young-Moon (College of Architecture Engineering, Chonbuk National Univ.)
You, Ki-Pyo (College of Architecture Engrg., Chonbuk National Univ., Long-span Steel Frame System Research Center)
Publication Information
Journal of Korean Association for Spatial Structures / v.18, no.2, 2018 , pp. 59-67 More about this Journal
Abstract
Various pilotis are installed in the lower part of high rise buildings. Strong winds can generate sudden airflow around the pilotis, which can cause unexpected internal airflow changes and may cause damage to the exterior of the piloti ceiling. The present study investigates the characteristics of peak wind pressure coefficient for the design of piloti ceiling exteriors by conducting wind pressure tests on high rise buildings equipped with penetration-type and end-type pilotis in urban and suburban areas. The minimum peak wind pressure coefficient for penetration-type piloti ceilings ranges from -2.0 to -3.3. Minimum peak wind pressure coefficient in urban areas was 30% larger than in suburban areas. In end-type piloti ceilings, maximum peak wind-pressure coefficient ranges from 0.5 to 1.9, and minimum peak wind-pressure coefficient ranges from -1.3 to -3.6. With changes in building height, peak wind pressure coefficient decreases as the aspect ratio increases. Peak wind-pressure coefficient increases with taller pilotis. On the other hand, when piloti height decreases, the absolute value of the minimum peak wind pressure coefficient increases.
Keywords
Pilotis; Peak wind pressure; Penetration type pilotis; End type pilotis; Wind tunnel test;
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  • Reference
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